Air Vent Head Cast Iron JIS 5K
Cast Iron JIS 5K Straight-Through Air Vent Head
Cast iron air vent head for marine ventilation piping, featuring flanged connection and nominal pressure class JIS 5K. Product classification: JIS standard, body material Cast Iron, and straight-through pattern design.
Functional Role
This vent head is installed on lines to facilitate air removal from tanks or auxiliary networks, without serving as a pressure control valve. Proper location selection is critical, as insufficient venting can impact tank filling, emptying, pump suction, and overall hydraulic behavior of the system.
Technical Characteristics
- Type: air vent head / vent fitting
- Connection: flanged
- Flange rating: JIS 5K
- Body material: cast iron
- Pattern: straight-through
- Application: marine vent networks and auxiliary piping
Selection Criteria
For technical selection, confirm the following:
- DN and JIS 5K flange drilling
- installation above tank filling level
- air flow capacity during tank filling/emptying
- cast iron compatibility with media and environment
- requirement for coating or corrosion protection
- access for cleaning and inspection
Typical Applications
- venting of fresh water tanks
- auxiliary marine piping
- air lines in filling/drainage systems
- installations requiring JIS 5K specification
- non-critical vent lines as per vessel design
Maintenance
Periodic inspection should include internal passage cleanliness, flange condition, body corrosion, and possible deposits from salts or atmospheric exposure. For deck or external installations, check coating integrity and flange tightness to prevent leakage.
